Example of the Fact Check label for a news article in the SERP:

Example of the Fact Check label on a website:

When determining if you should use this tag for your articles or webpages, consider whether it meets the following criteria, which are characteristics we consider for fact-checking sites:
• The analysis must be transparent about sources and methods, with citations and references to primary sources included.
• Claims and claim checks must be easily identified within the body of fact-check content. Readers should be able to determine and understand what was checked and what conclusions were reached.
• The page hosting the ClaimReview markup must have at least a brief summary of the fact check and the evaluation if not the full text.
Bing determines whether an article might contain fact checks by looking for the schema.org ClaimReview markup. In addition to the ClaimReview markup being contained on page, Bing also looks for sites that follow commonly accepted criteria for fact checks including of third-party fact checking organizations.
Please note that we may not show the Fact Check label for all pages that include the ClaimReview schema markup. If we find sites not following the criteria for the ClaimReview markup, we might ignore the markup. We will consider the reputation of the site as well as other factors to determine if and when the tag should show. Use of the Claim Review tag when appropriate fact checking has not been done is a violation of our webmaster guidelines and Bing may penalize sites for such abuse or take other actions.

More information on how to implement and use this tag can be found at https://schema.org/ClaimReview